中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
Extracting the Virtual Reflected Wavelet from TEM Data Based on Regularizing Method

文献类型：期刊论文

作者Xue, Guo-qiang1; Bai, Chao-ying2; Li, Xiu2
刊名PURE AND APPLIED GEOPHYSICS
出版日期2012-07-01
卷号169期号:7页码:1269-1282
关键词Transient electromagnetic method wave field transformation Tikhonov regularization virtual wavelet
ISSN号0033-4553
DOI10.1007/s00024-011-0392-1
文献子类Article
英文摘要A pseudo-seismic interpretation method is an alternative way to process and explain transient electromagnetic (TEM) data, and has become a popular research field in recent years. TEM signals which satisfy the diffusion equation can be converted by means of a mathematical transformation into ones which obey the wave equation. For an ill-posed problem of this kind of transformation, a sub-regularization algorithm is developed in this paper to extract a virtual wavelet of the TEM field. According to the conventional designation of TEM recordings, the entire integration period is divided into seven time intervals. In order to avoid low accuracy in the calculations, high-density wavefield data has been calculated based on the former sub-division. Therefore, the virtual wavelet can be extracted successfully by using an optimized algorithm to obtain high-density integral coefficients for all time windows, and a satisfactory condition number of the coefficient matrix while taking a different channel number in each time period. The Tikhonov regularization inversion scheme is used to determine the optimal parameters based on minimizing a least squares misfit, and the Newton iterative formula is used to obtain optimal regularization parameters. Both synthetic model simulations and a real data interpretation example indicate that the proposed pseudo-seismic wavefield method is a suitable alternative way to interpret TEM data.
WOS关键词ILL-POSED PROBLEMS ; ELECTROMAGNETIC RESPONSE ; IMAGE-RESTORATION ; MIGRATION ; ALGORITHM
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000305216200007
出版者SPRINGER BASEL AG
资助机构National Natural Science Foundation(40774020 ; National Natural Science Foundation(40774020 ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; 40774066 ; 40774066 ; 41030750) ; 41030750) ; National Natural Science Foundation(40774020 ; National Natural Science Foundation(40774020 ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; 40774066 ; 40774066 ; 41030750) ; 41030750) ; National Natural Science Foundation(40774020 ; National Natural Science Foundation(40774020 ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; 40774066 ; 40774066 ; 41030750) ; 41030750) ; National Natural Science Foundation(40774020 ; National Natural Science Foundation(40774020 ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; Chinese Academy of Sciences(KZCX2-YW-Q04-07) ; 40774066 ; 40774066 ; 41030750) ; 41030750)
源URL[http://ir.iggcas.ac.cn/handle/132A11/84208]  
专题中国科学院地质与地球物理研究所
通讯作者Xue, Guo-qiang
作者单位1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Changan Univ, Dept Geophys, Coll Geol Engn & Geomat, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Xue, Guo-qiang,Bai, Chao-ying,Li, Xiu. Extracting the Virtual Reflected Wavelet from TEM Data Based on Regularizing Method[J]. PURE AND APPLIED GEOPHYSICS,2012,169(7):1269-1282.
APA Xue, Guo-qiang,Bai, Chao-ying,&Li, Xiu.(2012).Extracting the Virtual Reflected Wavelet from TEM Data Based on Regularizing Method.PURE AND APPLIED GEOPHYSICS,169(7),1269-1282.
MLA Xue, Guo-qiang,et al."Extracting the Virtual Reflected Wavelet from TEM Data Based on Regularizing Method".PURE AND APPLIED GEOPHYSICS 169.7(2012):1269-1282.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。